I doubt there is a person on this Earth that cares more about the accuracy and integrity of the DK scoreboard than I do.
This is actually false. I have been completely inactive from this forum and community for years and I care more about the accuracy and integrity of the DK scoreboard than you do. The way that I know that I do is that I believe that the best-scoring record that has ever been achieved in the game's entire history should be listed on the leaderboard, and you do not.
I actually don't care about your motivations for rejection at all. The fact is that you struck a legitimately-achieved score from the record on a leaderboard which is intended to display the highest-scoring Donkey Kong players of all time?or at least, I thought that was what it was for until a few days ago.
I understand that you may have worked around Robbie's eccentricities in the past, and even dealt with him saying mean things about you or the other users of the forum. While that is certainly noble of you, it doesn't grant you a pass to then later strike legitimate scores from a leaderboard upon which the only two factors that should be relevant are the actual score achieved within the game and the legitimacy of the practices used while playing.
Try to distance yourself from your own personal biases. In fact, distance yourself entirely from Robbie, his opinions, his personality, and everything about him. You have here a score that was achieved using, as far as you or anyone else can tell, legitimate, original Donkey Kong arcade hardware, using entirely legitimate and accepted practices within the game, with absolutely no evidence of foul play whatsoever, and the score achieved on it was higher than any player ever achieved in a single game before it. Despite all of this, you have rejected the record because of some personal issue with how the person who played that game handled himself, his own personal opinions (which are contradicted by facts) regarding the legitimacy of his own gameplay and actions, and your general personal opinion about the player's character.
If you decide to just completely ignore the above paragraph and insist that Robbie's personality and your personal opinions regarding his personality are somehow relevant to the legitimacy of his scores and whether or not they are deserving of being ranked, by taking a quick look into Robbie's personality and why he made the claims that he did, any rational actor with an unbiased mind can understand precisely the psychology behind why Robbie made the claims that he did. Robbie claimed that he was "cheating" in the game because he was frustrated by the (potentially false) belief that other players were using these hardware modifications in their own gameplay, and was also frustrated by his false belief that these hardware modifications had any influence on the gameplay whatsoever. Thus, he used provocative language by claiming that he himself was cheating by engaging in the same practices as everybody else (implying that many others before him were cheating, and that it is the only reason they were able to achieve better scores than he could in the past) to try to stir up emotions among the users in the community, due to his own frustration, which, admittedly, stemmed entirely from his own irrationality and hubris.
Looked in the objective manner described in the above paragraph (and I'm certain that you or anyone else reading, unless they are intentionally trying to frame the situation into something it is not because they have some bias, would indeed agree is in fact precisely what was occurring), even in a world where they somehow are relevant, Robbie's own personal opinions and public Internet posts are in no way grounds for punishment on the scale of completely expunging his records and stripping him of his rightful title as champion. Your decision here is completely wrong, and it's no wonder that many users are coming out of the wood-works to cast judgement upon you for it. If you check my post history, you will see that I came out of the wood-works years ago, to praise you for your expos? on Billy Mitchell. I have had nothing but the deepest of respect for you for many years. I hope that some day soon, I can return to praise you for reversing your terrible decision on this matter, too.